LAS VEGAS — A 25-year-old man was arrested on a felony terrorism charge after he was accused of panicking shoppers by donning a mask and toting a replica AK-47 assault rifle through a Las Vegas mall, police said Friday.

Police wearing tactical gear evacuated hundreds of people and used dogs to search The Boulevard Mall after witnesses reported seeing a masked man walking with a weapon about 7 p.m. Thursday through the centre court of the 140-store shopping centre, according to department and witness accounts.